The Ret Ring® Interchange

We designed The Ret Ring®
With CRUSH GAUGE
to fit every impact wrench socket on Earth!

FTL is the exclusive manufacturer for the Crush Gauge Ret Rings worldwide.

Some of the top tool brands in the USA including Stanley-Proto (Red), J H Williams, Wright Tool Company and Martin Tool carry our patented product.

Please use the interchange below to find the proper size to fit the groove diameter of the socket ‘A’ with the matching square drive ‘B’.

The Ret Ring® is manufactured in 18 different sizes to fit most Impact Sockets with 3/4”, 1″ and 1 1/2″ square drive openings.

Crush Gauge Interchange

The Interchange gives the different part numbers from various manufacturers that we supply allowing you to select the correct size for your tools. Red and blue Retrings are identical in spec and quality...just different colors.